KR20170044446A - Closing force assistant device for door closer - Google Patents

Closing force assistant device for door closer Download PDF

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Publication number
KR20170044446A
KR20170044446A KR1020150144157A KR20150144157A KR20170044446A KR 20170044446 A KR20170044446 A KR 20170044446A KR 1020150144157 A KR1020150144157 A KR 1020150144157A KR 20150144157 A KR20150144157 A KR 20150144157A KR 20170044446 A KR20170044446 A KR 20170044446A
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KR
South Korea
Prior art keywords
ball
fire door
mounting portion
door
elastic member
Prior art date
Application number
KR1020150144157A
Other languages
Korean (ko)
Other versions
KR101782695B1 (en
Inventor
김경태
Original Assignee
김경태
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김경태 filed Critical 김경태
Priority to KR1020150144157A priority Critical patent/KR101782695B1/en
Publication of KR20170044446A publication Critical patent/KR20170044446A/en
Application granted granted Critical
Publication of KR101782695B1 publication Critical patent/KR101782695B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/41—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing
    • E05Y2201/412—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/47—Springs; Spring tensioners
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors

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  • Special Wing (AREA)

Abstract

The closure force replenishing device for a door closure for a fire door according to the present invention is characterized in that a shaft portion is coupled to a drive shaft of a door closure and a rotary plate having a ball insertion portion is provided on the shaft portion, And a ball supporting body covers a part of the ball, a moving body for rotatably supporting the ball supporting body is supported on one side of the main elastic member, the main elastic supporting body supports the other side of the main elastic member, The ball support, the moving body, the main elastic member, and the main elastic member support body, and the mounting portion for disposing the ball support body is provided with an inclined surface, and the case is fixed to the fire door or the door closure, At the time when the fire door closes, the ball is inserted into the ball mounting portion of the turntable and the rotation of the turntable due to the elastic force of the main elastic member And a ball releasing means for releasing the ball to the ball mounting portion of the rotating plate is provided close to the outside of the rotating plate so that the ball is separated from the ball mounting portion of the rotating plate when the fire door is opened, And determining a time point at which the ball is inserted or released from the ball mounting portion of the rotary plate.
Therefore, according to the present invention, when the fire door is closed, the ball is inserted into the ball mounting portion of the rotating plate rotated by the closing action of the fire door at an opening angle of 5 to 20 degrees, so that the elastic force of the main elastic member replenishes the rotating force of the rotating plate , The rotation force of the rotary plate is increased by the elastic force of the main elastic member and the closing of the fire door can be easily improved. When the fire door is closed, the opening angle of the fire door is 1 to 10 degrees, It is possible to easily determine the action timing of the elastic force of the main elastic member. In case of opening the fire door, when the opening angle of the fire door is 1 to 10 degrees, The elastic force of the main elastic member does not act on the rotary plate, so that the fire door can be opened smoothly. The.

Description

{CLOSING FORCE ASSISTANT DEVICE FOR DOOR CLOSER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closure force replenishing device for a door closure for a fire door, and more particularly, to a closure force replenishing device for a door closure for a fire door so that the closing force of the door closure can be easily increased immediately before the fire door is closed .

In general, a door closer is installed in the fire door to prevent the spread of smoke and toxic gas in the event of a fire or to prevent the spread of fire, and the fire door is normally kept open.

In addition, when smoke or toxic gas is generated in the room due to a fire or the like, there is provided an automatic unlocking device for a fire door that automatically releases the door from being opened by the fire detection system. For example, There is a door release with a latch.

In other words, the fire door with the door closing device and the door unlocking device is kept open, and when the fire is detected such as the generation of smoke or toxic gas, the door unlocking device is operated to release the door lock state of the fire door Accordingly, the fire door is closed by the closing force of the door closing device (force acting in the closing direction of the door), so that the smoke and the toxic gas can be prevented from diffusing and the diffusion of the fire can be prevented.

If the closure force of the door closing device is too strong, it is difficult for the evacuator to open the fire door. If the closing force is too weak, the fire door will not be closed quickly, and the air and gas pressure, So that smoke or toxic gas can leak out.

Therefore, although the door closing device and the auto hinge of the door closing device are provided with an adjusting device for adjusting the elastic force of the spring so as to maintain a proper elastic force required for the door, the characteristics of the door closing device The closing force of the fire door just before the fire door completely closes is remarkably lower than the closing force of the initial fire door which acts in the fully opened state of the fire door as well as the closing of the fire door is difficult due to the air and gas pressure in the room where the fire occurred .

In order to overcome these disadvantages, conventionally filed and registered technologies such as Patent Application No. 10-2007-38194, No. 10-2007-89963, No. 10-2008-30941, etc. have been developed.

However, the prior art of the patent application Nos. 10-2007-38194 and 10-2007-89963 is that the cam is rotated by the elastic force of the spring just before the closing of the fire door (normally the opening angle is 10 ° to 20 °) There is a disadvantage in that the force for rotating the cam is so weak that it is insufficient to supplement the closing force.

In addition, conventionally, it has been difficult to adjust the angle for supplementing the closing force, and the opening force can not be smoothly reduced due to the force for supplementing the closing force at the time of opening.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the closing force of a rotating plate using a ball supported by a main elastic member, And to provide a closure force replenishing device for a door closure for a fire door that can easily increase closing force.

Further, it is possible to determine a time point at which the closing force is increased by the elastic force of the main elastic member by using the ball releasing means, and it is also possible to reduce the opening force of the fire door by determining the time when the ball is released by the ball releasing means, A closing force replenishing device for a door closure for a fire door is provided.

According to an aspect of the present invention, there is provided a door closing door for a fire door, which is coupled to an end of a driving shaft of a door closer rotated by opening and closing a fire door, and which replenishes the rotational force of a driving shaft of the door closer immediately before closing the fire door A closing force force replenishing apparatus comprising: a shaft closure having a shaft portion coupled to a drive shaft of a door closure, a rotary plate having a ball insertion portion provided on the shaft portion, a part of the ball inserted or removed into the ball insertion portion of the rotary plate, A moving body for rotatably supporting the ball support is supported on one side of the main elastic member, the main elastic supporting member supports the other side of the main elastic member, and the ball supporting body and the moving body, the main elasticity Member, a mounting portion for mounting the main elastic member support body, and the ball support body And the ball is inserted into the ball mounting portion of the rotating plate at the time when the fire door is closed to supplement the rotational force of the rotating plate by the elastic force of the main elastic member, And when the fire door is opened, the ball is detached from the ball mounting portion of the rotary plate.

And a ball releasing means for releasing the ball to the ball mounting portion of the turntable is installed close to the outside of the turntable to determine the time of inserting or leaving the ball into the ball mounting portion of the turntable.

In the closure force replenishing device for a door closure for a fire door according to the present invention, when a fire door is closed, a ball is inserted into a ball mounting portion of a rotary plate rotated by the closing action of the fire door at an opening angle of 5 to 20 degrees Since the elastic force of the main elastic member replenishes the rotational force of the rotary plate, the rotational force of the rotary plate is increased by the elastic force of the main elastic member, and the complete closing of the fire door can be easily improved.

Further, when the fire door is closed, the opening angle of the fire door is separated from the ball inserted into the ball mounting portion of the rotary plate by the ball releasing means at 1 ° to 10 °, so that the operating point of the elastic force of the main elastic member can be easily determined. The elastic force of the main elastic member does not act on the rotary plate to open the fire door smoothly since the opening angle of the fire door is separated from the ball inserted into the ball mounting portion of the rotary plate by the ball releasing means at 1 ° to 10 ° You can.

1 is a front view showing a part of a fire door to which an example of a closing force replenishing device for a door closure according to the present invention is applied.
2 is a sectional view taken along line A-A in Fig.
3 is a sectional view taken along the line B - B in Fig.
Fig. 4 is a perspective view showing an example of a closing force replenishing device of the door closure of Fig. 1;
FIG. 5 is an exploded perspective view showing a portion C in FIG. 4; FIG.
6 to 8 are cross-sectional views illustrating a closure force replenishing device for a door closure for a fire door according to the present invention.
9 is a perspective view showing another example of a closing force replenishing device for a door closure for a fire door according to the present invention.
10 is a front view of Fig.
11 is an exploded perspective view of the closing force replenishing device of Fig.
12 is a front view showing still another example of a closing force replenishing device for a door closure for a fire door according to the present invention.
13 is a modeling drawing of the closing force replenishing device of the door closure for the fire door of Fig.
Figure 14 is a modeling drawing of the closing force replenishing device of the door closure for the fire door of Figure 9;

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 to 5 and 13 are views showing a closure force replenishing device for a door closure for a fire door, wherein the closure force replenishing device for a door closure for a fire door according to the present invention comprises a door closure 2 When the fire door 1 is closed, a structure that replenishes the rotational force of the drive shaft 2a immediately before the fire door 1 is completely closed, that is, in this embodiment, at an opening angle of 5 ° to 20 °, to be.

That is, in the closure force replenishing device for a door closure for a fire door according to the present invention, the shaft portion 11 is coupled to the drive shaft 2a of the door closure 2, and the rotary plate 12 having the ball insertion portion 12a A part of the ball 13 is inserted into or removed from the ball insertion portion 12a of the rotary plate 12 in accordance with the rotation angle of the rotation plate 12. [

The ball support 14 surrounds a part of the ball 13 and a moving body 15 rotatably supporting the ball support 14 is supported on one side of the main elastic member 16, So that the support 17 supports the other side of the main elastic member 16.

A mounting portion 18a for mounting the ball support 14, the moving body 15, the main elastic member 16 and the main elastic member supporting body 17 is provided in the case 18, (1) or the door closure (2).

Particularly, in order to move the ball support 14 and compress the main elastic member 16 so as to separate the position of the ball 13 from the ball mounting portion 12a of the rotary plate 12, The mounting portion 18a is provided with an inclined surface 18b.

Of course, the inclined surface 18b is located opposite to the rear surface of the rotary plate 12, and a circular arc is formed on the rotary plate 12 for guiding the ball 13 spaced from the ball installation portion 12 of the rotary plate 12, And the main elastic member support body 17 is engaged with the mounting portion 18a of the case 18 to adjust the position of the main elastic member support body 17, It is obvious that the elastic force of the elastic member 16 can be varied.

A friction between the outer surface of the ball support 14 and the mounting portion 18a of the case 18 and a friction between the outer surface of the moving member 15 and the mounting portion 18a of the case 18 It is preferable to provide a bushing or a bearing on the portion to facilitate the movement of the ball support 14 and the moving body 15. [

The ball 13 is inserted into the ball mounting portion 12a of the rotary plate 12 to supplement the rotational force of the rotary plate 12 by the elastic force of the main elastic member 16, 12 is released, the ball 13 is disengaged from the ball mounting portion 12a of the rotary plate 12.

6 to 8, when the fire door 1 is closed in the open state as shown in Fig. 6, when the fire door 1 is closed at an opening angle of 5 to 20 degrees as shown in Fig. 7 The ball 13 is inserted into the ball mounting portion 12a of the rotating plate 12 so that the elastic force of the main elastic member 16 moves the moving body 15 and the ball supporting body 14 to move the rotating plate 12 ) Is increased.

8, when the fire door 1 is completely closed, the elastic force of the main elastic member 16 continues to exert a force to rotate the rotary plate 12, and by the pressure to open the fire door at the time of fire, Thereby preventing the openings.

Of course, the position of the ball mounting portion 12a of the rotary plate 12 when the fire door 1 is closed as shown in FIG. 8 is adjusted during the assembling process so that the rotary plate 12 The ball 13 can be adjusted to be inserted into the ball mounting portion 12a.

It is necessary to detach the ball 13 from the ball mounting portion 12a to an external force so as to determine a point of time when the elastic force of the main elastic member 16 acts. A ball releasing means for releasing the ball 13 from the ball mounting portion 12a of the rotary plate 12 is provided close to the outer side of the rotary plate 12 so that the ball 13 is inserted into or removed from the ball mounting portion 12a of the rotary plate 12 And a structure for determining a viewpoint.

For example, as shown in Figs. 9 to 11 and Fig. 14, the ball releasing means includes a guide groove 12c formed around a ball mounting portion 12a of the rotary plate 12, A ball releasing member 19 having a ball releasing portion 19a inserted into the guide groove 12c at one side thereof is rotatably mounted on the case 18 and is supported by an auxiliary elastic member 20, The auxiliary case 21 is in close contact with the other side of the ball releasing member 19 and the auxiliary case 22 containing the auxiliary elastic member 20 and the auxiliary supporting body 21 is installed on one side of the case 18.

Of course, it is obvious that a bolt for adjusting the elastic force of the auxiliary elastic member 20 in the auxiliary case 22 can be provided.

The ball releasing portion 19a of the ball releasing member 19 is inserted into the guide groove 12c of the rotary plate 12 at the closing point of the fire door 1 (opening angle of the fire door is 1 ° to 10 °) The ball 13 is released from the ball mounting portion 12a of the rotary plate 12. [

The ball 13 inserted into the ball mounting portion 12a of the rotary plate 12 by the ball releasing member 19 which is the ball releasing means at the opening angle of 1 to 10 degrees of the fire door, It is possible to determine the time when the elastic force of the main elastic member 16 is actuated and to open the door when the opening angle of the fire door is 1 to 10 degrees. The ball 13 inserted into the ball mounting portion 12a of the rotary plate 12 is separated by the elastic releasing force of the auxiliary elastic member 20 by the ball releasing member 19 so that the elastic force of the main elastic member 16 is transmitted to the rotary plate 12) so that the fire door can be opened smoothly.

12, the ball releasing means may include a ball inserted into the guide groove 12c formed around the ball mounting portion 12a of the rotary plate 12, The release protrusion 23a protrudes upward from the central portion of the leaf spring 23 and the leaf spring 23 is installed on one side of the case 18 so that the ball release protrusion 23a The ball 13 can be released from the ball mounting portion 12a of the rotary plate 12 at the closing point of the fire door 1 (the door opening angle is 1 to 10 degrees) Therefore, it is omitted below.

According to the present invention, the ball is inserted into or removed from the ball mounting portion of the turntable according to the rotation angle of the turntable in accordance with the opening angle of the fire door, and the ball detaching means is provided to smoothly increase the closing force of the fire door. And the opening force of the fire door can be reduced.

1: Fire door 2: Door closure
11: shank 12: spindle
13: ball 14: ball support
15: moving body 16: main elastic member
17: main elastic member support body 18: case
19: ball releasing member 20: auxiliary elastic member
21: Auxiliary support body 22: Auxiliary case
23: leaf spring

Claims (4)

A closing force replenishing device for a door closure for a fire door, the door closure being connected to an end of a driving shaft of a door closure rotated according to opening and closing of a fire door to supplement a rotational force of a driving shaft of a door closure immediately before closing the fire door,
The shaft portion is coupled to the drive shaft of the door closure,
A rotary plate having a ball insertion portion is provided on the shaft portion,
A part of the ball is inserted or released in accordance with the rotation angle of the rotation plate in the ball insertion portion of the rotation plate,
A ball support encloses a part of the ball,
A moving body for rotatably supporting the ball support is supported on one side of the main elastic member,
The main elastic member support body supporting the other side of the main elastic member,
The mounting portion for mounting the ball support, the moving body, the main elastic member, and the main elastic supporting member is provided in the case, and the mounting portion for disposing the ball support is provided with an inclined surface, and the case is fixed to the fire door or the door closure ,
Wherein the ball is inserted into the ball mounting portion of the rotary plate at the time when the fire door is closed to supplement the rotational force of the rotary plate by the elastic force of the main elastic member and the ball is detached from the ball mounting portion of the rotary plate when the fire door is opened. Closure force replenishment device. The method according to claim 1,
And a ball releasing means for releasing the ball to the ball mounting portion of the turntable is installed close to the outside of the turntable so as to determine a time point at which the ball is inserted into or removed from the ball mounting portion of the turntable. Closure force replenishment device. 3. The method of claim 2,
Wherein the ball releasing means includes a guide groove formed around a ball mounting portion of the rotary plate, a ball releasing member having a ball releasing portion inserted into a guide groove of the rotary plate at one side thereof is rotatably provided in the case, And an auxiliary case including the auxiliary elastic member and the auxiliary supporting member is installed on one side of the case, and a ball detachment portion of the ball releasing member is closed at a time point when the fire door is closed And the ball is detached from the ball mounting portion of the turntable at a time when the door is closed. 3. The method of claim 2,
Wherein the ball releasing means is formed with a guide groove around the ball mounting portion of the rotary plate, the ball releasing protrusion inserted into the guide groove of the rotary plate protrudes upward from the center of the plate spring, Wherein the ball releasing protrusion of the leaf spring releases the ball from the ball mounting portion of the rotary plate at the time when the fire door is closed.
KR1020150144157A 2015-10-15 2015-10-15 Closing force assistant device for door closer KR101782695B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150144157A KR101782695B1 (en) 2015-10-15 2015-10-15 Closing force assistant device for door closer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150144157A KR101782695B1 (en) 2015-10-15 2015-10-15 Closing force assistant device for door closer

Publications (2)

Publication Number Publication Date
KR20170044446A true KR20170044446A (en) 2017-04-25
KR101782695B1 KR101782695B1 (en) 2017-09-28

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Application Number Title Priority Date Filing Date
KR1020150144157A KR101782695B1 (en) 2015-10-15 2015-10-15 Closing force assistant device for door closer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587805A (en) * 2017-09-19 2018-01-16 苏州市富尔达科技股份有限公司 One kind fire prevention shutting window device
KR20220000564A (en) * 2020-06-26 2022-01-04 김경태 Closing force assistance device for door closer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100315054B1 (en) 1998-11-03 2001-11-24 김영조 Door locking device for door close
JP3817441B2 (en) * 2000-07-06 2006-09-06 リョービ株式会社 Door closer
JP5057147B2 (en) 2007-09-27 2012-10-24 リョービ株式会社 Closing force assist device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587805A (en) * 2017-09-19 2018-01-16 苏州市富尔达科技股份有限公司 One kind fire prevention shutting window device
KR20220000564A (en) * 2020-06-26 2022-01-04 김경태 Closing force assistance device for door closer

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